Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4540627 | Magnetic recording medium | Akio Ishizawa, Toshio Hukaya, Katuya Kumagai | 1985-09-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4540627 | Magnetic recording medium | Akio Ishizawa, Toshio Hukaya, Katuya Kumagai | 1985-09-10 |